Paper-cutter.



A. T. HARPER, DEGD. J. w. urma, Anurm'mnon.

' PAPER CUTTER.

APPLICATION FILED JUNE 19, 1913.

1,116,886. Patented Nov. 10,191;

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g UNITED sTATEs PATENT OFFICE.

ABRAHAM a. HARPER, or PORTLAND, MAINE; JAM s w. H RPER AnMIuIs'rRAroR orSAID ABRAHAM 'r. HARPER, DECE SED. Q

PAPER-CUTTER.

Specification of Letters "Patent.

Patented Nov. 10, 1914.

Application filed. June 19, 1913. Serial No. 774,503.

To all whom it may concern:

Be it known that I, ABRAHAM T. HARPER, a citizen of the United States,residing at Portland, in the county of Cumberland and State ofMaine,'have invented certain new and useful ImprovementsinPaper-Outters, of which the following isa specification.

Figure l is a plan view of my device; Fig. 2 is a detail elevation of myimproved transverse adjustable gage; Fig. 3 is a detail showing pivotand washer; and Fig. 4 is a detail of the blank for the spring whichholds the movable blade with yielding tenting blade C. The blade C isattached to the blade B by means of a pivot bar D.

Said bar is provided with a threaded nut F on the end thereof, andinterposed between nut F and blade C is a pronged spring E and a washerG, the washer G being provided with a dog G adapted ,to take into alongitudinal groove D in the pivot bar and being located between thespring and The pivot is rigidly inserted in the stationary blade and theconstruction of the washer is such that it can not be turned on thepivot bar. The movable blade and the spring turn on the pivot bar. Thusconstructed, there is no tendency of the nut to loosen by repeatedaction of the movable blade. The movable blade is provided on its pivotend with a slight olfset H beyond the pivot point so that, when thespring is set, it holds the free end of the blade with a yieldingtension. against the stationary blade, so that the movable blade alwaysmoves against the stationary blade with a shearing cut, thus preventingany possibility of the two cutting edges failing to coincide at allcutting points. Mounted'in the base is an adjustable gage I set on aspindle J passing through the base, said spindle being provided with astop J on the inside of the gage and with a removable nut, K on theoutside thereof, so that the gage I may be detached from its supportingspindle for convenience in packaging. The gage is parallel with thecutting blades and is adjustable in the base, and maybe held in anyposition by means of a set screw L set in the base and adapted to beturned'into engagement with the spindle. In a transverse recess Mlocated in thebase near the pivot point is an adjustable gage N providedwith angle sockets O, and on its inner end with a projection Psubstantially equal to the width of the stationary cutter. The upperedge of the gage N isnormally above the plane of the top of the table.The gage is held in place by means of pins Q, which pass through anglesockets in the gage. In the normal position of the gage the pins areinthehorizontal portions 0 of the angle sockets. hen it is desired tocut a piece of paper longerthan the table, the gage M may be moved awayfrom the cutting blades, and then falls in the recess until the pins arein the top of the vertical portions 0 of the angle sockets, thus leavingthe paper free to slide beyond-the end of the table and the cut is thencompleted by another movement of the cutting blades.

Having thus described my invention and its use, I claim: v 1. In a papercutter, a table, a cutting blade rigidly secured to said table, a pivotbar rigidlysecured to said cutting blade, a movable cutting bladepivotally mounted upon said pivot bar, awasher rigidly mounted upon saidpivot bar, and a pronged spring pivotally mounted upon said pivot barbetween said movable blade and said Washer.

2. In a paper cutter, a table, a stationary blade secured thereto, amovable cutting blade pivotally attached to said stationary blade, atransverse groove in said table near the pivot end of the blades and agage adjustable vertically .and transversely of the table.

3. In a paper cutter, a table, a stationary cutting blade securedthereto, a movable cutting blade pivotally attached to said stationaryblade, a gage lying parallel with and outside of the cutting blades andadjustable relative thereto, and an adjusting gage at right angles tosaid cutting blades and adjustable vertically and transversely relativethereto.

4. In a paper cutter, a table, a stationary angle sockets, whereby saidgage is adjust blade secured theretma movable-ebladeipivable-fvex'tically. and endw'ise in said grooves. otally attached to saidstationaryblad e, said table being previded With a groove at rightABRAHAM HARPER 5 angles" to said b1ades,', an adjustable" gageW1ttiesse's:

set in said groove and provided with angle JoHN HARPER;

sockets, and pins extending throughsaid ELGIN C. VERRILL.

Copies of this patent max beobtaineddorfive cents each by addressing theCommissioner of Patents,

Washingtbn, ID. 0.

